diff --git a/nbd.c b/nbd.c
index 4bf2eb7..730c514 100644
--- a/nbd.c
+++ b/nbd.c
@@ -65,6 +65,12 @@
 
 #define NBD_OPT_EXPORT_NAME	(1 << 0)
 
+/* for I/O statistics */
+
+uint64_t nbd_stats_io = 0;
+uint64_t nbd_stats_read = 0;
+uint64_t nbd_stats_written = 0;
+
 /* That's all folks */
 
 #define read_sync(fd, buffer, size) nbd_wr_sync(fd, buffer, size, true)
@@ -687,6 +693,8 @@ int nbd_trip(BlockDriverState *bs, int csock, off_t size, uint64_t dev_offset,
 	switch (request.type) {
 	case NBD_CMD_READ:
 		TRACE("Request type is READ");
+		nbd_stats_io++;
+		nbd_stats_read += request.len;
 
 		if (bdrv_read(bs, (request.from + dev_offset) / 512,
 			      data + NBD_REPLY_SIZE,
@@ -721,6 +729,8 @@ int nbd_trip(BlockDriverState *bs, int csock, off_t size, uint64_t dev_offset,
 		break;
 	case NBD_CMD_WRITE:
 		TRACE("Request type is WRITE");
+		nbd_stats_io++;
+		nbd_stats_written += request.len;
 
 		TRACE("Reading %u byte(s)", request.len);
 
diff --git a/nbd.h b/nbd.h
index fc3a594..2d9457b 100644
--- a/nbd.h
+++ b/nbd.h
@@ -44,6 +44,10 @@ enum {
 
 #define NBD_DEFAULT_PORT	10809
 
+extern uint64_t nbd_stats_io;
+extern uint64_t nbd_stats_read;
+extern uint64_t nbd_stats_written;
+
 size_t nbd_wr_sync(int fd, void *buffer, size_t size, bool do_read);
 int tcp_socket_outgoing(const char *address, uint16_t port);
 int tcp_socket_incoming(const char *address, uint16_t port);
diff --git a/qemu-nbd.c b/qemu-nbd.c
index 99f1d22..7626c37 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -37,6 +37,7 @@
 #define NBD_BUFFER_SIZE (1024*1024)
 
 static int verbose;
+static int delay = 0;
 
 static void usage(const char *name)
 {
@@ -44,6 +45,7 @@ static void usage(const char *name)
 "Usage: %s [OPTIONS] FILE\n"
 "QEMU Disk Network Block Device Server\n"
 "\n"
+"  -a, --stats=N        display statistics every N seconds\n"
 "  -p, --port=PORT      port to listen on (default `%d')\n"
 "  -o, --offset=OFFSET  offset into the image\n"
 "  -b, --bind=IFACE     interface to bind to (default `0.0.0.0')\n"
@@ -180,6 +182,49 @@ static void show_parts(const char *device)
     }
 }
 
+static void nbd_stats(void)
+{
+	static struct timespec prev;
+	static int first = 1;
+	static uint64_t max_read = 0, max_written = 0, max_io = 0;
+	struct timespec current;
+	long seconds;
+	uint64_t current_read = 0, current_written = 0, current_io = 0;
+
+	clock_gettime(CLOCK_MONOTONIC, &current);
+	if (first) {
+		first = 0;
+		prev = current;
+		return;
+	}
+
+	seconds = (current.tv_sec - prev.tv_sec) * 1000 +
+                  (current.tv_nsec - prev.tv_nsec) / 1000000;
+
+	if (seconds < delay * 1000)
+		return;
+
+	current_io = nbd_stats_io * 1000 / seconds;
+	if (current_io > max_io)
+		max_io = current_io;
+	current_read = nbd_stats_read * 1000 / seconds / 1024;
+	if (current_read > max_read)
+		max_read = current_read;
+	current_written = nbd_stats_written * 1000 / seconds / 1024;
+	if (current_written > max_written)
+		max_written = current_written;
+
+	printf("%"PRIu64" io/s, %"PRIu64" R kB/s %"PRIu64" W kB/s "
+               "(%"PRIu64" io/s, %"PRIu64" R kB/s, %"PRIu64" W kB/s)\n",
+		current_io, current_read, current_written,
+		max_io, max_read, max_written);
+
+	nbd_stats_io = 0;
+	nbd_stats_read = 0;
+	nbd_stats_written = 0;
+	prev = current;
+}
+
 int main(int argc, char **argv)
 {
     BlockDriverState *bs;
@@ -195,11 +240,12 @@ int main(int argc, char **argv)
     char *device = NULL;
     char *socket = NULL;
     char sockpath[128];
-    const char *sopt = "hVb:o:p:rsnP:c:dvk:e:t";
+    const char *sopt = "hVb:o:a:p:rsnP:c:dvk:e:t";
     struct option lopt[] = {
         { "help", 0, NULL, 'h' },
         { "version", 0, NULL, 'V' },
         { "bind", 1, NULL, 'b' },
+        { "stats", 1, NULL, 'a' },
         { "port", 1, NULL, 'p' },
         { "socket", 1, NULL, 'k' },
         { "offset", 1, NULL, 'o' },
@@ -243,6 +289,15 @@ int main(int argc, char **argv)
         case 'b':
             bindto = optarg;
             break;
+        case 'a':
+            delay = strtol(optarg, &end, 0);
+            if (*end) {
+                errx(EXIT_FAILURE, "Invalid statistics delay `%s'", optarg);
+            }
+            if (delay < 0) {
+                errx(EXIT_FAILURE, "Statisctics delay must be positive `%s'", optarg);
+            }
+            break;
         case 'p':
             li = strtol(optarg, &end, 0);
             if (*end) {
@@ -456,7 +511,16 @@ int main(int argc, char **argv)
         for (i = 0; i < nb_fds; i++)
             FD_SET(sharing_fds[i], &fds);
 
-        ret = select(max_fd + 1, &fds, NULL, NULL, NULL);
+        if (delay) {
+            struct timeval timeout;
+
+            nbd_stats();
+            timeout.tv_sec = delay;
+            timeout.tv_usec = 0;
+            ret = select(max_fd + 1, &fds, NULL, NULL, &timeout);
+        } else {
+            ret = select(max_fd + 1, &fds, NULL, NULL, NULL);
+        }
         if (ret == -1)
             break;
 
